<!DOCTYPE HTML>
<html>
<head>
    <title>EasyBuy后台管理系统</title>
    <meta charset="utf-8">
    <style>
			.main_bar{
				width:1350px;
				height:350px;
				background-color:#6495ED;
				margin-top:10%;
			}
			#login_form{
				width:40%;
				height:100%;
				background-color:#112435;
				margin:0 auto;
			}
			.title{
				width:100%;
				height:55px;
				color:#ffffff;
				border-bottom:1px solid #ffffff;
				font-size:20pt;
				font-family:"微软雅黑";
				line-height:55px;
				text-align:center;
			}
			#form_widget{
				width:100%;
				height:295px;
				background-color:#808080;
			}
			.txt{
				display:block;/*设置为独立块（换行）*/
				width:70%;
				margin:0 auto;
				height:35px;
				font-size:15pt;
				border-radius:5px;/*设置圆角样式*/
				border:0;
				padding-left:8px;
			}
			#vcode{
				height:35px;
				width:40%;
				font-size:15pt;
				margin-left:15%;
				border-radius:5px;
				border:0;
				padding-left:8px;
			}
			#code{
				color:#ffffff;/*字体颜色白色*/
				background-color:#000000;
				font-size:20pt;
				font-family:"华康娃娃体W5";
				padding:5px 35px 10px 35px;
				margin-left:5%;
				cursor:pointer;
			}
			#search_pass_link{
				width:70%;
				text-align:right;
				margin:0 auto;
				padding:5px;
			}
			/*层级选择器*/
			#search_pass_link a{
				color:#000000;
				text-decoration:none;
			}
			/*伪类*/
			#search_pass_link a:hover{
				color:#ff0000;
				text-decoration:underline;
			}
			.btn{
				width:70%;
				margin-left:15%;
				height:40px;
				border:0;
				font-size:14pt;
				font-family;"微软雅黑";
				background-color:#FC5628;
				color:#ffffff;
				cursor:pointer;/*设置指针鼠标的样式*/
				border-radius:20px;/*设置圆角样式*/
				border:0;
			}
			#copyright{
				width:100%;
				text-align:center;
				padding-top:20px;
				font-family:"微软雅黑";
				color:#e0e0e0;
			}
		</style>
</head>
<body leftmargin="0" onload="changeImg()">
<div class="main_bar">
    <div id="login_form">
        <div class="title">
            EasyBuy系统登录
        </div>
        <form action="Template.html" onsubmit="return check()">
            <div id="form_widget">
                <br>
                <input type="text" placeholder="请输入账号" id="box_name" class="txt" value="用户名" onfocus="this.value=''" onblur="if(this.value=='')this.value='用户名'"/>
                <br>
                <input type="password" placeholder="请输入密码" id="box_pass" class="txt" value="password" onfocus="this.value=''" onblur="if(this.value=='')this.value='password'"/>
                <br>
                <input type="text" id="vcode" placeholder="验证码" value="验证码" onfocus="this.value=''" onblur="if(this.value=='')this.value='验证码'"/><span id="code" title="看不清，换一张"></span>
                <div id="search_pass_link">
                    <a href="#">忘记密码？</a>
                </div>
                <input  type="submit" value="登录" class="btn" onmouseover="this.style.backgroundColor='#FF8D00'" onmouseout="this.style.backgroundColor='#FC5628'">
                <div id="register_link" align="center" class="btn" onmouseover="this.style.backgroundColor='#FF8D00'" onmouseout="this.style.backgroundColor='#FC5628'">
                    <a href="register.html">注册</a>
                </div>
                <br>
                <div id="copyright">
                    Power By WXH &copy;CopyRight 2016
                </div>
            </div>
        </form>
    </div>
</div>
</body>
<script type="text/javascript">
		var code;//声明一个变量用于存储生成的验证码
		document.getElementById("code").onclick=changeImg;
		function changeImg(){
			//alert("换图片");
			var arrays=new Array(
				'1','2','3','4','5','6','7','8','9','0',
				'a','b','c','d','e','f','g','h','i','j',
				'k','l','m','n','o','p','q','r','s','t',
				'u','v','w','x','y','z',
				'A','B','C','D','E','F','G','H','I','J',
				'K','L','M','N','O','P','Q','R','S','T',
				'U','V','W','X','Y','Z'
			);
			code='';//重新初始化验证码
			//alert(arrays.length);
			//随机从数组中获取四个元素组成验证码
			for(var i=0;i<4;i++){
			//随机获取一个数组的下标
				var r=parseInt(Math.random()*arrays.length);
				code+=arrays[r];
				//alert(arrays[r]);
			}
			//alert(code);
			document.getElementById('code').innerHTML=code;//将验证码写入指定区域
		}

		//效验验证码(表单被提交时触发)
		function check(){
			//获取用户输入的验证码
			var input_code=document.getElementById('vcode').value;
			//alert(input_code+"----"+code);
			if(input_code.toLowerCase()==code.toLowerCase())
			{
				//验证码正确(表单提交)
				return true;
			}
			alert("请输入正确的验证码!");
			//验证码不正确,表单不允许提交
			return false;
		}
	</script>
</html>
